"Just enacting the reforms agreed on in all current proposals would secure access to health insurance for millions of Californians," Shana Alex Lavarreda, the center's director of health insurance studies, said. "It would be a dramatic change for the better."

Of the 6.4 million people in California who are nonelderly and were uninsured in 2007, almost 4 million would gain access through proposed federal health insurance reforms. Of the 33 million nonelderly people in the state, 80.5 percent have continuous health insurance.

Recently an $829 billion plan to revamp the healthcare system was passed by the Senate Finance Committee. The plan will be combined with another passed in a different committee and then be debated on the Senate floor.